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this is arduino data logger which collect data from sensor DHT11

Step 1: Components

1. Arduino Uno

2.SD Card reader Module

3. Humidity Sensor (DHT11)

4. SD Card

Step 2: Connection of SD Card Reader

Step 3: DHT 11 Connection

VCC - 5V ARDUINO

GND - ARDUINO GND

DATA - PIN 7

<p>Good one, is there a way to use a smaller micro-controller in this circute? </p>
yes you can use

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